[Mesa-dev] [PATCH] intel/tools: new i965_disasm tool
Sagar Ghuge
sagar.ghuge at intel.com
Thu Aug 16 20:51:05 UTC 2018
Adds a new i965 instruction disassemble tool
Signed-off-by: Sagar Ghuge <sagar.ghuge at intel.com>
---
src/intel/Makefile.tools.am | 15 +++
src/intel/tools/i965_disasm.c | 202 ++++++++++++++++++++++++++++++++++
src/intel/tools/i965_disasm.h | 46 ++++++++
src/intel/tools/meson.build | 11 ++
4 files changed, 274 insertions(+)
create mode 100644 src/intel/tools/i965_disasm.c
create mode 100644 src/intel/tools/i965_disasm.h
diff --git a/src/intel/Makefile.tools.am b/src/intel/Makefile.tools.am
index 00624084e6..36a3a70a28 100644
--- a/src/intel/Makefile.tools.am
+++ b/src/intel/Makefile.tools.am
@@ -22,6 +22,7 @@
noinst_PROGRAMS += \
tools/aubinator \
tools/aubinator_error_decode \
+ tools/i965_disasm \
tools/error2aub
@@ -62,6 +63,20 @@ tools_aubinator_error_decode_CFLAGS = \
$(AM_CFLAGS) \
$(ZLIB_CFLAGS)
+tools_i965_disasm_SOURCES = \
+ tools/i965_disasm.c \
+ tools/i965_disasm.h
+
+tools_i965_disasm_LDADD = \
+ common/libintel_common.la \
+ compiler/libintel_compiler.la \
+ dev/libintel_dev.la \
+ $(top_builddir)/src/util/libmesautil.la \
+ $(PTHREAD_LIBS)
+
+tools_i965_disasm_CFLAGS = \
+ $(AM_CFLAGS)
+
tools_error2aub_SOURCES = \
tools/gen_context.h \
diff --git a/src/intel/tools/i965_disasm.c b/src/intel/tools/i965_disasm.c
new file mode 100644
index 0000000000..c880559827
--- /dev/null
+++ b/src/intel/tools/i965_disasm.c
@@ -0,0 +1,202 @@
+/*
+ * Copyright © 2018 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include <stdio.h>
+#include <getopt.h>
+
+#include "compiler/brw_inst.h"
+#include "compiler/brw_eu.h"
+
+#include "i965_disasm.h"
+
+uint64_t INTEL_DEBUG;
+uint16_t pci_id = 0;
+FILE *outfile;
+
+struct i965_disasm {
+ struct gen_device_info devinfo;
+};
+
+/* Return size of file in bytes pointed by fp */
+static size_t
+i965_disasm_get_file_size(FILE *fp)
+{
+ size_t size = 0;
+
+ fseek(fp, 0L, SEEK_END);
+ size = ftell(fp);
+ fseek(fp, 0L, SEEK_SET);
+
+ return size;
+}
+
+/* Return number of bytes read */
+static size_t
+i965_disasm_read_binary(FILE *fp, void **assembly)
+{
+ size_t end = i965_disasm_get_file_size(fp);
+ *assembly = malloc(end + 1);
+ fread(*assembly, end, 1, fp);
+ fclose(fp);
+
+ return end;
+}
+
+static void
+print_help(const char *progname, FILE *file)
+{
+ fprintf(file,
+ "Usage: %s [OPTION]...\n"
+ "Disassemble i965 instructions from binary file.\n\n"
+ " --help display this help and exit\n"
+ " --binary-path=PATH read binary file from binary file PATH\n"
+ " --gen=platform disassemble instructions for given \n"
+ " platform (3 letter platform name)\n",
+ progname);
+}
+
+int main(int argc, char *argv[])
+{
+ FILE *fp = NULL;
+ void *assembly = NULL;
+ char *binary_path = NULL;
+ size_t start = 0, end = 0;
+ int c, i;
+ struct i965_disasm *disasm;
+
+ bool help = false;
+ const struct option i965_disasm_opts[] = {
+ { "help", no_argument, (int *) &help, true },
+ { "binary-path", required_argument, NULL, 'b' },
+ { "gen", required_argument, NULL, 'g'},
+ { NULL, 0, NULL, 0 }
+ };
+
+ outfile = stderr;
+ i = 0;
+ while ((c = getopt_long(argc, argv, "", i965_disasm_opts, &i)) != -1) {
+ switch (c) {
+ case 'g': {
+ const int id = gen_device_name_to_pci_device_id(optarg);
+ if (id < 0) {
+ fprintf(outfile, "can't parse gen: '%s', expected ivb, byt, hsw, "
+ "bdw, chv, skl, kbl or bxt\n", optarg);
+ /* Clean up binary path if given pci id is wrong */
+ if (binary_path) {
+ free(binary_path);
+ fclose(fp);
+ }
+ exit(EXIT_FAILURE);
+ } else {
+ pci_id = id;
+ }
+ break;
+ }
+ case 'b':
+ binary_path = strdup(optarg);
+ fp = fopen(binary_path, "rb");
+ if (!fp) {
+ fprintf(outfile, "Unable to read input binary file : %s\n",
+ binary_path);
+ /* free binary_path if path is wrong */
+ free(binary_path);
+ exit(0);
+ }
+ break;
+ default:
+ /* Clean up binary path if given option is wrong */
+ if (binary_path) {
+ free(binary_path);
+ fclose(fp);
+ }
+ break;
+ }
+ }
+
+ if (help || !binary_path || !pci_id) {
+ print_help(argv[0], outfile);
+ exit(0);
+ }
+
+ i965_disasm_init(&disasm);
+ end = i965_disasm_read_binary(fp, &assembly);
+ i965_disasm_disassemble(disasm, assembly, start, end, outfile);
+
+ free(binary_path);
+
+ return EXIT_SUCCESS;
+}
+
+/* Disassemble i965 instructions from buffer assembly
+ * start : starting offset within buffer
+ * end : points to last byte of buffer
+ */
+void
+i965_disasm_disassemble(struct i965_disasm *disasm, void *assembly,
+ int start, int end, FILE *out)
+{
+ brw_disassemble(&disasm->devinfo, assembly, start, end, out);
+
+ free(assembly);
+
+ i965_disasm_destroy(disasm);
+}
+
+void
+i965_disasm_init(struct i965_disasm **disasm)
+{
+ struct gen_device_info devinfo;
+
+ if(!gen_get_device_info(pci_id, &devinfo)) {
+ fprintf(outfile, "can't find device information: pci_id=0x%x\n",
+ pci_id);
+ exit(EXIT_FAILURE);
+ }
+
+ *disasm = i965_disasm_create(&devinfo);
+}
+
+struct i965_disasm *
+i965_disasm_create(const struct gen_device_info *devinfo)
+{
+ struct i965_disasm *i965d;
+
+ i965d = malloc(sizeof *i965d);
+ if (i965d == NULL)
+ return NULL;
+
+ i965d->devinfo = *devinfo;
+
+ /* initialize compaction table in order
+ * to handle compacted instructions
+ */
+ brw_init_compaction_tables(&i965d->devinfo);
+
+ return i965d;
+}
+
+void
+i965_disasm_destroy(struct i965_disasm *disasm)
+{
+ free(disasm);
+}
diff --git a/src/intel/tools/i965_disasm.h b/src/intel/tools/i965_disasm.h
new file mode 100644
index 0000000000..45cb7a015c
--- /dev/null
+++ b/src/intel/tools/i965_disasm.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright © 2018 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ */
+
+#ifndef _I965_DISASM_H
+#define _I965_DISASM_H
+
+#include "dev/gen_device_info.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct i965_disasm;
+
+struct i965_disasm *i965_disasm_create(const struct gen_device_info *devinfo);
+void i965_disasm_disassemble(struct i965_disasm *disasm, void *assembly,
+ int start, int end, FILE *out);
+void i965_disasm_init(struct i965_disasm **disasm);
+void i965_disasm_destroy(struct i965_disasm *disasm);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _I965_DISASM_H */
diff --git a/src/intel/tools/meson.build b/src/intel/tools/meson.build
index cef0f2e956..68bc4f8669 100644
--- a/src/intel/tools/meson.build
+++ b/src/intel/tools/meson.build
@@ -40,6 +40,17 @@ aubinator_error_decode = executable(
install : true
)
+i965_disasm = executable(
+ 'i965_disasm',
+ files('i965_disasm.c', 'i965_disasm.h'),
+ dependencies : [dep_thread],
+ include_directories : [inc_common, inc_intel],
+ link_with : [libintel_common, libintel_compiler, libintel_dev, libmesa_util],
+ c_args : [c_vis_args, no_override_init_args],
+ build_by_default : true,
+ install : true
+)
+
error2aub = executable(
'intel_error2aub',
files('aub_write.h', 'aub_write.c', 'error2aub.c'),
--
2.17.1
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